Patents by Inventor Yaowen Li

Yaowen Li has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20220247562
    Abstract: Physimetric-based data security for coded distributed temperature sensing (DTS) in which physimetric information is extracted from a coded-DTS interrogator which is unique for each interrogator at each operating run time—and used to reconstruct a final temperature determination from DTS data. The physimetric information includes coded-DTS pulse code and coded-DTS pulse profile information as a key to permit secure sharing with authorized users. The pulse code and pulse profile information are encrypted and made available to an authorized user. The authorized user can then decrypt the pulse code and pulse profile information and subsequently use this key information (pulse profile and pulse code files) to retrieve temperature information from for example, a remote computer providing a continuous raw data feed—without being susceptible to eavesdropping.
    Type: Application
    Filed: January 31, 2022
    Publication date: August 4, 2022
    Applicant: NEC LABORATORIES AMERICA, INC
    Inventors: Qiang WANG, Junqiang HU, Jian FANG, Yaowen LI, Ting WANG
  • Patent number: 11391622
    Abstract: An optical fiber sensing system with reduced spatial resolution and noise for multiple applications and method of operating same that employs a coherent receiver configured to detect and digitize both I and Q signals in two polarizations and performs signal beating in a digital signal processor (DSP) using the polarization-diverse signals to obtain beating results for multiple polarization state pairs that effectively reduces polarization induced fading effect(s) while providing faster sensing speed(s) and more efficient filtering. Since Rayleigh signals are captured in two orthogonal polarizations, four beating products are determined at once in the DSP and all are used for fiber strain determination thereby avoiding polarization fading.
    Type: Grant
    Filed: February 5, 2020
    Date of Patent: July 19, 2022
    Inventors: Ezra Ip, Yue-Kai Huang, Junqiang Hu, Philip Ji, Shuji Murakami, Yaowen Li
  • Patent number: 11387898
    Abstract: Aspects of the present disclosure describe optical fiber sensing systems, methods and structures disclosing a distributed optical fiber sensor network constructed on a switched optical fiber telecommunications infrastructure to detect temperatures, acoustic effects, and vehicle traffic—among others—demonstrated with a number of different network topologies.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: July 12, 2022
    Inventors: Ting Wang, Ming-Fang Huang, Yaowen Li, Philip Ji
  • Patent number: 11383162
    Abstract: Provided are a voice skill game editing method, an apparatus, a device and a readable storage medium, which involve displaying a plurality of node elements having a hierarchical relationship and a cascading element for connecting a parent node and a child node in a node editing area of a user editing interface; acquiring voice scenario information configured by a user for the node elements in an element configuration area of the node elements when the node elements are determined as in an active state; acquiring voice skill control information configured by the user for the cascading element in an element configuration area of the cascading element when the cascading element is determined as in an active state; and determining, according to the hierarchical relationship corresponding to the node elements and the voice skill control information configured for the cascading element, game logic between the voice scenario information.
    Type: Grant
    Filed: June 25, 2020
    Date of Patent: July 12, 2022
    Inventors: Kaisheng Song, Xuening Deng, Yaowen Qi, Jiale Wang, Huan Tang, Liangcheng Wu, Lei Zhong, Peng Yuan, Linlin Zhao, Sen Li
  • Patent number: 11248144
    Abstract: Disclosed herein is a coating composition comprising a silsesquioxane component having one or more reactive functional groups that render it curable using ultraviolet radiation; where the one or more reactive functional groups are selected from the group consisting of an acrylate, a vinyl ether, or an epoxy; and optionally, a co-reactive non-silsesquioxane monomer and/or an oligomer having one or more reactive functional groups that are curable using ultraviolet radiation and are selected from the group consisting of free radically curable acrylates, cationically curable epoxies, and cationically curable vinyl ethers; where the coating composition is disposed and cured on an optical article; where the optical article is at least one of an optical fiber or an optical planar waveguide; and where the average functionality of the composition is greater than one.
    Type: Grant
    Filed: April 9, 2020
    Date of Patent: February 15, 2022
    Assignee: OFS FITEL, LLC
    Inventors: Debra A Simoff, Kenneth S Feder, Yaowen Li, Jacob Wrubel, Kenichi Suyama, Mei Wen
  • Patent number: 11204286
    Abstract: Aspects of the present disclosure describe single mode fiber distributed temperature sensing (DTS) with improved noise characteristics employing superluminescent emitting diodes (SLEDs) and/or amplified spontaneous emission (ASE) light sources.
    Type: Grant
    Filed: May 21, 2020
    Date of Patent: December 21, 2021
    Inventors: Yaowen Li, Ming-Fang Huang, Shuji Murakami, Philip Ji, Ting Wang
  • Publication number: 20210318182
    Abstract: Aspects of the present disclosure describe distributed fiber optic sensing (DFOS) systems, methods, and structures that advantageously achieve single mode fiber distributed temperature sensing (DTS) with improved noise characteristics by employing a polarization scrambler in its optical chain.
    Type: Application
    Filed: April 10, 2021
    Publication date: October 14, 2021
    Applicant: NEC LABORATORIES AMERICA, INC
    Inventors: Yaowen LI, Yue-Kai HUANG, Ting WANG
  • Publication number: 20210318181
    Abstract: Aspects of the present disclosure describe distributed fiber optic sensing systems (DFOSa), methods, and structures for distributed temperature sensing (DTS) that 1) employs a GmAPD instead of a traditional LmAPD detector which advantageously produces a 10˜20 dB gain improvement of SNR for a far-end weak signal, thereby improving long range detectability; 2) employs an inventive gating scheme that advantageously and surprisingly overcomes the “dead time” problem for GmAPD working in SPC mode that plagues Geiger mode operation; and 3) third, employs an inventive post-processing technique that advantageously allows our methods to correct any dark noise caused signal distortion.
    Type: Application
    Filed: March 3, 2021
    Publication date: October 14, 2021
    Applicant: NEC LABORATORIES AMERICA, INC
    Inventors: Qiang WANG, Yaowen LI
  • Publication number: 20210266065
    Abstract: Aspects of the present disclosure describe optical fiber sensing systems, methods and structures disclosing a distributed optical fiber sensor network constructed on a switched optical fiber telecommunications infrastructure to detect temperatures, acoustic effects, and vehicle traffic—among others—demonstrated with a number of different network topologies.
    Type: Application
    Filed: September 28, 2020
    Publication date: August 26, 2021
    Applicant: NEC LABORATORIES AMERICA, INC
    Inventors: Ting WANG, Ming-Fang HUANG, Yaowen LI, Philip JI
  • Publication number: 20210199512
    Abstract: Aspects of the present disclosure describe single mode fiber distributed temperature sensing (DTS) with improved noise characteristics employing superluminescent emitting diodes (SLEDs) and/or amplified spontaneous emission (ASE) light sources.
    Type: Application
    Filed: May 21, 2020
    Publication date: July 1, 2021
    Applicant: NEC LABORATORIES AMERICA, INC
    Inventors: Yaowen LI, Ming-Fang HUANG, Shuji MURAKAMI, Philip JI, Ting WANG
  • Publication number: 20210181059
    Abstract: Aspects of the present disclosure describe systems, methods and structures providing bipolar cyclic coding for Brillouin optical time domain analysis that may be employed—for example—to determine high accuracy temperature and/or strain measurements along an optical fiber. Systems, methods, and structures according to the present disclosure employ the bipolar cyclic coding technique that advantageously overcomes the problems that plague the prior art and provides extended sensing range resulting from superior signal-to-noise characteristics.
    Type: Application
    Filed: December 8, 2020
    Publication date: June 17, 2021
    Applicant: NEC LABORATORIES AMERICA, INC
    Inventors: Jian FANG, Yaowen LI, Ting WANG
  • Publication number: 20210166885
    Abstract: A method for preparing an inorganic perovskite battery based on a synergistic effect of gradient annealing and antisolvent includes preparing a perovskite layer by a gradient annealing and an antisolvent treatment. A thickness of the perovskite layer is 100 to 1000 nm; when preparing a perovskite precursor solution of the perovskite layer, a solvent is an amide-based solvent and/or a sulfone-based solvent; a concentration of the perovskite precursor solution for preparing the perovskite layer is 0.4 to 2 M; and the gradient annealing is conducted at 40 to 70° C./0.5 to 5 min+70 to 130° C./0.5 to 5 min+130 to 160° C./5 to 20 min+160 to 280° C./0 to 20 min; and a solvent for the anti-solvent treatment is an alcohol solvent, a benzene solvent or an ether solvent.
    Type: Application
    Filed: February 8, 2021
    Publication date: June 3, 2021
    Inventors: Yaowen LI, Weijie CHEN, Yonfang LI
  • Patent number: 10931366
    Abstract: Aspects of the present disclosure describe optical fiber sensing systems, methods and structures disclosing a distributed fiber sensor network constructed on an existing, live network, data carrying, optical fiber telecommunications infrastructure to detect temperatures, acoustic effects, and vehicle traffic—among others. Of particular significance, sensing systems, methods, and structures according to aspects of the present disclosure may advantageously identify specific network locations relative to manholes/handholes and environmental conditions within those manholes/handholes namely, normal, flooded, frozen/iced, etc.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: February 23, 2021
    Assignees: VERIZON PATENT AND LICENSING INC.
    Inventors: Ting Wang, Ming-Fang Huang, Tiejun Xia, Glenn Wellbrock, Yaowen Li, Philip Ji
  • Publication number: 20200370970
    Abstract: Aspects of the present disclosure describe monitoring of optical fiber by distributed temperature sensing (DTS) and determining optical fiber degradation and/or abnormal environmental events including landslides, fires, etc., from DTS data.
    Type: Application
    Filed: May 19, 2020
    Publication date: November 26, 2020
    Applicant: NEC LABORATORIES AMERICA, INC
    Inventors: Ming-Fang HUANG, Yaowen LI
  • Publication number: 20200313763
    Abstract: Aspects of the present disclosure describe optical fiber sensing systems, methods and structures disclosing a distributed fiber sensor network constructed on an existing, live network, data carrying, optical fiber telecommunications infrastructure to detect temperatures, acoustic effects, and vehicle traffic—among others. Of particular significance, sensing systems, methods, and structures according to aspects of the present disclosure may advantageously identify specific network locations relative to manholes/handholes and environmental conditions within those manholes/handholes namely, normal, flooded, frozen/iced, etc.
    Type: Application
    Filed: March 25, 2020
    Publication date: October 1, 2020
    Applicants: NEC LABORATORIES AMERICA, INC, VERIZON PATENT AND LICENSING INC.
    Inventors: Ting WANG, Ming-Fang HUANG, Tiejun XIA, Glenn WELLBROCK, Yaowen LI, Philip JI
  • Patent number: 10788621
    Abstract: An optical fiber having at least two polymer coatings, the optical fiber comprising: an optical fiber comprising a glass optical core and a glass cladding; a first polymer coating comprising a silicone polymer covering the optical fiber; and a second polymer coating covering the first polymer coating is provided.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: September 29, 2020
    Inventors: Jie Li, Yaowen Li, Michael J Hines, Brian Violette, Lei Huang, David Burgess
  • Patent number: 10739228
    Abstract: Aspects of the present disclosure describe a multilayer coding method for physical value measurements in which a multi-pulse pattern is generated through several layers, each of which is encoded with a different cyclic codeword. The total coding gain is the product of the gains of each layer advantageously allowing a long cyclic codeword to be replaced by combining several short cyclic codewords. Of particular advantage, methods according to the present disclosure provide better signal-to-noise characteristics, longer sensing distances and lower computational complexity particularly suitable for high-performance and cost-effective distributed optical fiber sensing (DOFS).
    Type: Grant
    Filed: January 26, 2019
    Date of Patent: August 11, 2020
    Assignee: NEC Corporation
    Inventors: Yaowen Li, Jian Fang, Ting Wang
  • Publication number: 20200249076
    Abstract: Aspects of the present disclosure describe optical fiber sensing systems, methods and structures and application employing coherent detection of backscattered signals.
    Type: Application
    Filed: February 5, 2020
    Publication date: August 6, 2020
    Applicant: NEC LABORATORIES AMERICA, INC
    Inventors: Ezra IP, Yue-Kai HUANG, Junqiang HU, Philip JI, Shuji MURAKAMI, Yaowen LI
  • Publication number: 20200231843
    Abstract: Disclosed herein is a coating composition comprising a silsesquioxane component having one or more reactive functional groups that render it curable using ultraviolet radiation; where the one or more reactive functional groups are selected from the group consisting of an acrylate, a vinyl ether, or an epoxy; and optionally, a co-reactive non-silsesquioxane monomer and/or an oligomer having one or more reactive functional groups that are curable using ultraviolet radiation and are selected from the group consisting of free radically curable acrylates, cationically curable epoxies, and cationically curable vinyl ethers; where the coating composition is disposed and cured on an optical article; where the optical article is at least one of an optical fiber or an optical planar waveguide; and where the average functionality of the composition is greater than one.
    Type: Application
    Filed: April 9, 2020
    Publication date: July 23, 2020
    Applicant: OFS Fitel, LLC
    Inventors: Debra A Simoff, Kenneth S Feder, Yaowen Li, Jacob Wrubel, Kenichi Suyama, Mei Wen
  • Patent number: 10655034
    Abstract: Disclosed herein is a coating composition comprising a silsesquioxane component having one or more reactive functional groups that render it curable using ultraviolet radiation; where the one or more reactive functional groups are selected from the group consisting of an acrylate, a vinyl ether, or an epoxy; and optionally, a co-reactive non-silsesquioxane monomer and/or an oligomer having one or more reactive functional groups that are curable using ultraviolet radiation and are selected from the group consisting of free radically curable acrylates, cationically curable epoxies, and cationically curable vinyl ethers; where the coating composition is disposed and cured on an optical article; where the optical article is at least one of an optical fiber or an optical planar waveguide; and where the average functionality of the composition is greater than one.
    Type: Grant
    Filed: July 28, 2015
    Date of Patent: May 19, 2020
    Assignee: OFS FITEL, LLC
    Inventors: Debra A Simoff, Kenneth S Feder, Yaowen Li, Jacob Wrubel, Kenichi Suyama, Mei Wen